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<p><code><strong>SyntaxError</strong></code> 对象代表尝试解析语法上不合法的代码的错误。</p>
<h2 id="Description" name="Description">描述</h2>
<p>当Javascript语言解析代码时,Javascript引擎发现了不符合语法规范的tokens或token顺序时抛出<code>SyntaxError</code>.</p>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre><code class="language-javascript"><code>new SyntaxError([<var>message</var>[, <var>fileName</var>[, <var>lineNumber</var>]]])</code></code></pre>
<h3 id="Parameters" name="Parameters">参数</h3>
<dl>
<dt><code>message</code></dt>
<dd>可选的. 可阅读的错误描述信息</dd>
<dt><code>fileName</code> <span class="icon-only-inline" title="This API has not been standardized."><i class="icon-warning-sign"> </i></span></dt>
<dd>可选的. 包含引发异常的代码的文件名</dd>
<dt><code>lineNumber</code> <span class="icon-only-inline" title="This API has not been standardized."><i class="icon-warning-sign"> </i></span></dt>
<dd><span style="line-height: 19.0909080505371px;">可选的</span>. <span style="line-height: 19.0909080505371px;">包含引发异常的代码</span><span style="line-height: 19.0909080505371px;">的行号</span></dd>
</dl>
<h2 id="Properties" name="Properties">属性</h2>
<dl>
<dt><a href="Reference/Global_Objects/SyntaxError/prototype" title="SyntaxError.prototype 属性表示SyntaxError 构造器的原型."><code>SyntaxError.prototype</code></a></dt>
<dd><code><font face="Open Sans, sans-serif">允许</font>SyntaxError</code>对象添加属性.</dd>
</dl>
<h2 id="Methods" name="Methods">方法</h2>
<p>全局 <code>SyntaxError</code> 自身不包含任何方法, 但从原型链中继承了一些方法.</p>
<h2 id="SyntaxError_instances" name="SyntaxError_instances"><code>SyntaxError</code> 实例</h2>
<h3 id="Properties_of_SyntaxError_instances" name="Properties_of_SyntaxError_instances">属性</h3>
<div><dl>
<dt><code>SyntaxError.prototype.constructor</code></dt>
<dd>创建实例的构造函数.</dd>
<dt><a href="Reference/Global_Objects/Error/message" title="message 属性是有关错误信息，人类易读的（human-readable）描述。"><code>SyntaxError.prototype.message</code></a></dt>
<dd>错误信息. 尽管 ECMA-262 指出, <a href="Reference/Global_Objects/SyntaxError" title="SyntaxError 对象代表尝试解析语法上不合法的代码的错误。"><code>SyntaxError</code></a> 应该提供其子什么的信息属性,但在 <a href="/en-US/docs/Mozilla/Projects/SpiderMonkey">SpiderMonkey</a> 中, 仍是继承自<a href="Reference/Global_Objects/Error/message" title="message 属性是有关错误信息，人类易读的（human-readable）描述。"><code>Error.prototype.message</code></a>.</dd>
<dt><a href="Reference/Global_Objects/Error/name" title='name 属性表示error类型的名称.初始值为"Error".'><code>SyntaxError.prototype.name</code></a></dt>
<dd><span style="line-height: 19.0909080505371px;">错误的名称.继承自</span> <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
<dt><a href="Reference/Global_Objects/Error/fileName" title="fileName 属性包含引发此错误的文件的路径."><code>SyntaxError.prototype.fileName</code></a></dt>
<dd>抛出该异常的文件路径.继承自 <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
<dt><a href="Reference/Global_Objects/Error/lineNumber" title="lineNumber 属性的值为抛出错误的代码在其源文件中所在的行号。"><code>SyntaxError.prototype.lineNumber</code></a></dt>
<dd><span style="line-height: 19.0909080505371px;">抛出该异常的文件的行号</span>. 继承自 <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
<dt><a href="Reference/Global_Objects/Error/columnNumber" title="columnNumber属性包含引发此错误的文件行中的列号。"><code>SyntaxError.prototype.columnNumber</code></a></dt>
<dd><span style="line-height: 19.0909080505371px;">抛出该异常的文件的列数</span>. <span style="line-height: 19.0909080505371px;">继承自</span> <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
<dt><a href="Reference/Global_Objects/Error/stack" title="此页面仍未被本地化, 期待您的翻译!"><code>SyntaxError.prototype.stack</code></a></dt>
<dd>栈追踪信息. <span style="line-height: 19.0909080505371px;">继承自</span> <a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a>.</dd>
</dl></div>
<h3 id="Methods_of_SyntaxError_instances" name="Methods_of_SyntaxError_instances">方法</h3>
<div></div>
<h2 id="Examples" name="Examples">示例</h2>
<h3 id="Example:_Catch_an_SyntaxError" name="Example:_Catch_an_SyntaxError">捕获 <code>SyntaxError</code></h3>
<pre><code  class="language-javascript">try {
  eval('hoo bar');
} catch (e) {
  console.log(e instanceof SyntaxError); // true
  console.log(e.message);                // "missing ; before statement"
  console.log(e.name);                   // "SyntaxError"
  console.log(e.fileName);               // "Scratchpad/1"
  console.log(e.lineNumber);             // 1
  console.log(e.columnNumber);           // 4
  console.log(e.stack);                  // "@Scratchpad/1:2:3\n"
}
</code></pre>
<h3 id="Example:_Create_an_SyntaxError" name="Example:_Create_an_SyntaxError">创建 <code>SyntaxError</code></h3>
<pre><code  class="language-javascript">try {
  throw new SyntaxError('Hello', 'someFile.js', 10);
} catch (e) {
  console.log(e instanceof SyntaxError); // true
  console.log(e.message);                // "Hello"
  console.log(e.name);                   // "SyntaxError"
  console.log(e.fileName);               // "someFile.js"
  console.log(e.lineNumber);             // 10
  console.log(e.columnNumber);           // 0
  console.log(e.stack);                  // "@Scratchpad/2:11:9\n"
}
</code></pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td><a class="external" href="https://www.ecma-international.org/publications/files/ECMA-ST-ARCH/ECMA-262,%203rd%20edition,%20December%201999.pdf" hreflang="en" lang="en" rel="noopener" title="ECMAScript 3rd Edition (ECMA-262)">ECMAScript 3rd Edition (ECMA-262)</a></td>
<td><span class="spec-Standard">Standard</span></td>
<td>Initial definition.</td>
</tr>
<tr>
<td><a class="external" href="https://www.ecma-international.org/ecma-262/5.1/#sec-15.11.6.4" hreflang="en" lang="en" rel="noopener">ECMAScript 5.1 (ECMA-262)<br/><small lang="zh-CN">SyntaxError</small></a></td>
<td><span class="spec-Standard">Standard</span></td>
<td> </td>
</tr>
<tr>
<td><a class="external" href="https://www.ecma-international.org/ecma-262/6.0/#sec-native-error-types-used-in-this-standard-syntaxerror" hreflang="en" lang="en" rel="noopener">ECMAScript 2015 (6th Edition, ECMA-262)<br/><small lang="zh-CN">SyntaxError</small></a></td>
<td><span class="spec-Standard">Standard</span></td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<div><div class="blockIndicator warning"><strong><a class="external" href="https://github.com/mdn/browser-compat-data" rel="noopener">We're converting our compatibility data into a machine-readable JSON format</a></strong>.
            This compatibility table still uses the old format,
            because we haven't yet converted the data it contains.
            <strong><a class="new" href="/zh-CN/docs/MDN/Contribute/Structures/Compatibility_tables" rel="nofollow">Find out how you can help!</a></strong></div>
<div class="htab">
<a id="AutoCompatibilityTable" name="AutoCompatibilityTable"></a>
<ul>
<li class="selected"><a>Desktop</a></li>
<li><a>Mobile</a></li>
</ul>
</div></div>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari</th>
</tr>
<tr>
<td>Basic support</td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Chrome for Android</th>
<th>Firefox Mobile (Gecko)</th>
<th>IE Mobile</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
</tr>
</tbody>
</table>
</div>
<h2 id="相关链接">相关链接</h2>
<ul>
<li><a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时，Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a></li>
<li><a href="Reference/Global_Objects/SyntaxError/prototype" title="SyntaxError.prototype 属性表示SyntaxError 构造器的原型."><code>SyntaxError.prototype</code></a></li>
</ul>
</article>